I am still experimenting of course but here are my initial settings and observations if anyone finds then helpful.
Warning long post.
I am sitting directly on the BK to get max effect at the lowest volumes - normal swivel office chair with arms.
I don't have any fancy suround sound, so use stero headphone out on generic PC sound card, y splitter to bose headphones, and BK with the phones to BK splitter to AMP. I have found the connectors to be very sensetive my headphone jack doesn't work all the way in, I need to back it out a fraction to get a good connection, otherwise volume is very low. I am going to replace the cables with some high quality components. If you aren't getting a good signal to the amp that's first place to go look.
Windows 7 - headphone volume at 75 percent, Elite at 100 percent in generic windows mixer.
In game - audio - optimize dynamic range - BOOST. Effects on MAX and music is MUTE.
The amp BKA-130-C is harder to read and setup as there is no volume dial or meter. With low filter cut off in, HCF cut off out and dial at 40 (lowest). Start the game, go into SC and blast your discovery scanner - this is the loudest effect in the game and is like an earthquake at high volume. Turn up the volume by pressing up of down - short presses not hold - until you start to feel the BK start thumping and the green signal light starts to flash - this could need several pushes before you get any response at all. If the green light is flashing you are getting a signal the BK should be thumping. If the red light flashes you are 'overdriving' the amp - this is OK as long as it is not constant only for volume peaks. Adjust the volume until you find a comfortable setting for your bum.
The amp doesn't remember last settings, just start from lowest and work upward until I find the level I want. The power button on the front takes a second to activate - tap the button then wait for power up it is not instant when cold.
Sitting directly on the BK is not the most comfortable experience but it is woth it to get every rumble of the engines. The pillows work well and you can move it all around, I have it placed horisontal under my thighs and I feel as if I am now in a fighter pilots seat. I feel connected to my ship in a way I never imagined.
When tuning your rig you need another person to provide feedback on level opf sound and vibration they experience at different proximities. When you are on the chair you feel everything, even the computer announcements. In the sitting room bellow where previously the room shook there is now only a muffled rumble.
So I mentioned the discovery horn - the volume for me became annoying quickly. My fillings started to ache with each blast, so I had to fix that. My VoiceAttack macro for scanning calls command line utility 'nircmd.exe changesysvolume -40000' to lower from 75 percent to about 5% for the duration of the blast then bring it up again.
Press down F key
Pause 5 seconds
Run application 'nircmd.exe ' with parameters 'changesysvolume -40000' and wait until it completes
Pause 4 seconds
Release F key
Pause 1 second
Run application 'nircmd.exe ' with parameters 'changesysvolume 40000'
If anyone has anything else to add or hints at tips please add your comments.
I truely recommend this to anyone who wants to feel the game - not just look at it, or be in it with a DK2. The combination is mind blowing. I have crosswind pedals on order to complete the kit - then upgrade CPU, RAM and MoBo. I dont have room for a gaming chair or simpit but maybe someday. CV1 or eqivalent if available first is on my Christmas list ... ... who knows what this game will drive me to next in my quest for further out of body experiences.
Nanu Nanu Commanders.
B-Z
I made a whole app for managing sub woofer volume base on HOTAS usage. i.e press boost and the app dips the sub durring the the charge phase to counter the excessive rumbling, then turns it up for the after burn before returning it normal operation. That's just a small portion of what it does but you get the idea. The app is tied to my X-55 and any sound card compatible with the 'VA' library for AHK.